Combination rule, square, and miter.



C. M. MQFARLAND.

COMBINATION RULE, SQUARE, AND MITER.

APPLIOATION FILED r1111. 1a, 1013.

'IIIE NORRIS PETERS CO. I'HOTD-LITHO, WASHINGTON, D c

TED sra'rpsg rnnr clarion- CHARLES M. MQFARLANI), OF LINDEN, TEXAS,ASSIGNOR 0F ONE-HALF T0 W. R. NEAL, OF LINDEN, TEXAS.

COMBINATION RULE, SQUARE, AND MITER.

To all whom it may concern:

Be it known that 1, CHARLES M. MOFAR- LAND, a citizen of the UnitedStates, residing at Linden, in the county of Cass and State of Texas,have invented certain new and useful Improvements in Combination Rules,Squares, and Miters; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention comprehencls improvements in combination devices andrelates more particularly to attachments for folding rules which willmake said rules capable of use as a square, try-square, and mlter.

The primary object of the inventionis to provide a device of thisnature, which shall be of extremely simple construction, practical, anduseful.

A more specific object of the invention resides in the provision of afolding rule having brace sections pivotally secured to its inner arms,said brace sections serving to hold said arms either at right angles toone another or at an angle of 45 and members secured to the rule for thepurpose of guiding a line forming instrument.

With these and other objects in view, as will become more apparent asthe description proceeds, the invention consists in cer tain novelfeatures of construction, combination, and arrangement of parts, as willbe hereinafter described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which,

Figure 1 is a top plan View of my device, showing in solid lines thesections of the rule at right angles and by dotted lines one of saidsections forming an angle of 45 with the other, Fig. 2 is a fragmentaryplan view showing the arms of the rule forming a 4l5 angle and thesliding members in their extended positions, Fig. 3 is a perspectiveview of one of the sliding members, Fig. 4 is a sectional view taken onthe plane of line -d:--it of Fig. 1, Fig. 5 is a fragmentary Viewillustrating the means of connecting the free ends of the bracesections, and, Fig. 6 is an edge view of one of said sections.

Referring in detail to the drawings by numerals, 10 and 11 designate,respectively,

Specification of Letters Patent.

Application filed February 18, 1913.

Patented Aug. 4, 1914.

Serial No. 749,208.

the inner sections of a folding carpcnters rule of the ordinary type,said sections being connected by the common type of hinge 12. The rulesection 10 is formed upon one face adjacent its inner edge with ashallow recess 13 and a brace section 14 is pivotally secured at one ofits ends in said recess adjacent one extremity thereof. The bracesection is formed of a strip of flat metal and is provided with acircular opening 15 and a notch 16, the notch being intermediate thefree end of said section and the openin The rule section 11 is fornedupon one face adjacent its inner edge with a longitudinal recess 17similar to the recess 13 and a brace section 18 is pivotally secured atone of its ends within said recess adjacent the inner end thereof. Thisbrace section is formed of a strip of flat metal and has secured theretoa headed pin 19 and a straight pin 20.

When it is desired to hold. the rule sections 10 and 11 at right anglesto each other, the pin 20 is fitted within the opening 15 in the bracesection 14 and the walls of the notch are engaged with the pin 19. Whenit is desired to lock the rule sections in such a position as to form a45 angle, the brace section 18 is disengaged from the brace section 14and the pin 20 seated within a hole 21 formed in the rule section 10.Then the parts are in this position, the brace section l-ft may bedisposed within its recess 13. The bottom wall of the recess 17 isformed with the grooves 29 and 23 which receive the pins 1) and 20,respectively.

Sliding members 24: and 25 are mounted upon the rule sections 10 and 11,respectively, and serve as guides for line marking devices well asperforming other usual functions. The sliding members 24 and 25 aresimilar in construction and each comprises a pair of metallic strips 26connected at one of their ends by a solid head 27. The strips extend inparallel relation to each other from one face of said head and areformed with longitudinal slots 28. The head is beveled at an angle of45, as inclicated at 29. The rule sections 10 and 11 are formed upontheir faces adjacent their outer edges with longitudinal end opening reccsses 30 in which the arms 28 of the sliding members are positioned.Retaining pins 31 and 32 secure said sliding members to the rule sectionand allow them a free longitudinal movement. It is to be noted that theretaining pin 32 carried by the rule section 11, is closer to the innerend of said section than the pin 31 carried upon the section 10 is tothe inner end thereof. This permits the sliding member 25 to move beyondthe sliding member 24 when the rule sections are positioned at an angleof as clearly shown in Fig. 2. If desired, a pin 33 may be formed uponthe sliding member 24 for reception within an opening 25 formed in thebeveled face of the sliding member 25, whereby said members are firmlyconnected when extended to form a 90 angle. This pin is received betweenthe plates 26 of the sliding member 25 when said member is disposed atan angle of 45 with relation to the sliding member 24. WVhen the deviceis folded, the rule sections 34 and 35 hide the lbrace sections andprotect the sliding memers.

From the foregoing description taken in connection with the accompanyingdrawings, it will be seen. that I have provided a simple device whichmay be used as a rule, square, try-square, and miter; which is verysimple in construction; and which is very practical.

It is to be understood that while I have shown and described thepreferred embodiment of my invention, I do not wish to be limited tothis exact construction, combination, and arrangement of parts, but maymake such changes as will fall within the spirit and scope of theinvention.

Having thus described my invention, what I claim is 1. The combinationwith a folding rule of the character described, having longitudinalrecesses formed in its inner sections adjacent their inner edges, ofbrace sections pivotally secured within said recesses, one of said bracesections being formed with a circular opening and an edge opening notch,a headed pin carried upon the other brace section for engagement withthe walls of said notch,

and a pin carried upon said last mentioned section for engagement withthe circular opening, said pins serving to connect the brace sections soas to hold the rule sections at a fixed angle, one of said rule sectionsbeing formed with an opening adapted to receive said second mentionedpin, whereby the rule sections may be locked to form another anglesmaller than the first mentioned angle.

2. The combination with a rule of the character described, of means forlocking the inner sections of said rule at fixed angles and slidingmembers carried upon said inner sections, said sliding members havingbevel-ed faces adapted for engagement with each other, when the rulesections are fixed at an angle of 90.

3. The combination with a folding rule of the character describedhaving, inner sections provided with recesses, of means for locking theinner sections of said rule at fixed angles, and sliding members carriedupon said inner sections, said sliding members comprising parallelstrips adapted to slide within the recesses formed in the rule sections,a solid head connecting said strips, the strips being provided withslots and fastening members carried by the inner sections and passingthrough said slots.

4. The combination with a folding rule of the character described havingpivoted sec tions, of sliding members carried upon said sections, saidsliding members having beveled faces for engagement with each other whenthe rule sections form an angle of 90, one of the sliding members beingformed with a recess and means carried by the other of the slidingmembers for reception within the recess.

In testimony whereof I atlix my signature in presence of two witnesses.

CHARLES M. MoFAR-LAND.

Witnesses i J. C. VVEATHERALL, F. B. DELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

